EP 1615214 A4 20080723 - OPTICAL RECORDING MEDIUM AND RECORDING/REPRODUCING METHOD THEREFOR
Title (en)
OPTICAL RECORDING MEDIUM AND RECORDING/REPRODUCING METHOD THEREFOR
Title (de)
OPTISCHES AUFZEICHNUNGSMEDIUM UND AUFZEICHNUNGS-/WIEDERGABEVERFAHREN DAFÜR
Title (fr)
SUPPORT D'ENREGISTREMENT OPTIQUE ET PROCEDE D'ENREGISTREMENT/REPRODUCTION ASSOCIE
Publication
Application
Priority
- JP 2004005215 W 20040412
- JP 2003109486 A 20030414
- JP 2003110579 A 20030415
Abstract (en)
[origin: US2005243699A1] In a single-sided incident type optical recording medium having a plurality of dye containing recording layers, sufficient reflectance and excellent recording characteristics necessary to record or read information in or from a dye containing recording layer positioning farther from a side from which a light beam comes in can be obtained. The optical recording medium has a first substrate ( 21 ) having a guide groove, a first dye containing recording layer ( 22 ), a semitransparent reflective layer ( 23 ), an intermediate layer ( 24 ), a second dye containing recording layer ( 25 ), a reflective layer ( 26 ) and a second substrate ( 27 ) having a guide groove. Information is recorded or read in or from the first dye containing recording layer ( 22 ) and the second dye containing recording layer ( 25 ) by irradiating the light beam from the first substrate's side. The depth of the guide groove on the second substrate is within a range from 1/100xlambda to 1/6xlambda where lambda represents the recording/reading wavelength.
IPC 8 full level
G11B 7/007 (2006.01); G11B 7/24 (2006.01); G11B 7/24038 (2013.01); G11B 7/24079 (2013.01); G11B 7/26 (2006.01)
CPC (source: EP US)
G11B 7/24038 (2013.01 - EP US); G11B 7/24079 (2013.01 - EP US)
Citation (search report)
- [X] US 2002060978 A1 20020523 - HIROTSUNE AKEMI [JP], et al
- [X] US 2001016242 A1 20010823 - MIYAMOTO MAKOTO [JP], et al
- [X] EP 0957477 A2 19991117 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- See references of WO 2004093070A1
Citation (examination)
- EP 1570466 A2 20050907 - KONINKL PHILIPS ELECTRONICS NV [NL]
- EP 1518229 A1 20050330 - KONINKL PHILIPS ELECTRONICS NV [NL]
- JP H1166622 A 19990309 - TAIYO YUDEN KK
- EP 1067535 A2 20010110 - PIONEER CORP [JP]
- JP 2000311384 A 20001107 - FUJI PHOTO FILM CO LTD
- EP 1193700 A2 20020403 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- EP 1174869 A2 20020123 - FUJI PHOTO FILM CO LTD [JP] & WO 2004021336 A2 20040311 - KONINKL PHILIPS ELECTRONICS NV [NL], et al & WO 03107334 A1 20031224 - KONINKL PHILIPS ELECTRONICS NV [NL], et al
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
US 2005243699 A1 20051103; US 7672215 B2 20100302; EP 1615214 A1 20060111; EP 1615214 A4 20080723; EP 2063425 A1 20090527; TW 200501106 A 20050101; TW I320926 B 20100221; US 2009141616 A1 20090604; US 7907503 B2 20110315; WO 2004093070 A1 20041028
DOCDB simple family (application)
US 17674905 A 20050707; EP 04726915 A 20040412; EP 09003085 A 20040412; JP 2004005215 W 20040412; TW 93110203 A 20040413; US 36090409 A 20090128